Title:
INFLATION AND DRAINAGE MECHANISM FOR SELF-INFLATION PRODUCT, SELF-OPENING BAG, INFLATION AND DRAINAGE FRAMEWORK OR SELF-INFLATION-AND-DRAINAGE CAVITY SUPPORT FRAMEWORK
Document Type and Number:
WIPO Patent Application WO/2020/239006
Kind Code:
A1
Abstract:
Disclosed are an inflation and drainage mechanism, a self-opening bag, and an inflation and drainage framework. The inflation and drainage mechanism comprises a self-sealing overflow pipe (1) and a drainage key (2); the self-sealing overflow pipe (1) comprises an inflation end (11) and a sealing end (12), the inflation end (11) communicates with the sealing end (12), the drainage key (2) comprises a first end (21) and a second end (22), and the drainage key (2) is only used during venting; an outer wall of the self-sealing overflow pipe (1) and an inflation port of an inflation product are arranged in a sealing manner; an external gas source is used for inflation by means of the self-sealing overflow pipe (1), when a required inflation volume or pressure is reached, inflation is stopped, and then the sealing end (12) of the self-sealing overflow pipe (1) is automatically sealed under the action of the internal pressure of the inflation product; and during venting, the drainage key (2) enables the sealing end of the self-sealing overflow pipe (1) to be opened into a gap, the self-sealing state of the self-sealing overflow pipe (1) is broken, and gas in the inflation product is vented outwards from the gap. The inflation and drainage mechanism has a simple structure and an extremely low production cost, is easy to use and operate, does not require an inflation device, can realize self-sealing, and has a good sealing effect.
Inventors:
CHEN WEIXIN (CN)
Application Number:
PCT/CN2020/092851
Publication Date:
December 03, 2020
Filing Date:
May 28, 2020
Export Citation:
Assignee:
CHEN WEIXIN (CN)
International Classes:
B65D81/03; A47C27/10
Foreign References:
| CN110155505A | 2019-08-23 | |||
| CN210227487U | 2020-04-03 | |||
| CN210213405U | 2020-03-31 | |||
| CN110101237A | 2019-08-09 | |||
| CN206384351U | 2017-08-08 | |||
| CN206384351U | 2017-08-08 | |||
| CN105888370A | 2016-08-24 | |||
| CN102233980A | 2011-11-09 | |||
| CN101756552A | 2010-06-30 | |||
| US20120312388A1 | 2012-12-13 |
Attorney, Agent or Firm:
BEIJING ZHIGUAGUA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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